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Carbon Nanotube Electron Emitter for X-ray Imaging
Department of Information Display and Advanced Display Research Center, Kyung Hee University, Seoul 130-701, Korea
* Author to whom correspondence should be addressed.
Received: 21 September 2012; in revised form: 24 October 2012 / Accepted: 12 November 2012 / Published: 16 November 2012
Abstract: The carbon nanotube field emitter array was grown on silicon substrate through a resist-assisted patterning (RAP) process. The shape of the carbon nanotube array is elliptical with 2.0 × 0.5 mm2 for an isotropic focal spot size at anode target. The field emission properties with triode electrodes show a gate turn-on field of 3 V/µm at an anode emission current of 0.1 mA. The author demonstrated the X-ray source with triode electrode structure utilizing the carbon nanotube emitter, and the transmitted X-ray image was of high resolution.
Keywords: carbon nanotube; X-ray; resist assisted patterning
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Cite This Article
MDPI and ACS Style
Ryu, J.H.; Kang, J.S.; Park, K.C. Carbon Nanotube Electron Emitter for X-ray Imaging. Materials 2012, 5, 2353-2359.
Ryu JH, Kang JS, Park KC. Carbon Nanotube Electron Emitter for X-ray Imaging. Materials. 2012; 5(11):2353-2359.
Ryu, Je H.; Kang, Jung S.; Park, Kyu C. 2012. "Carbon Nanotube Electron Emitter for X-ray Imaging." Materials 5, no. 11: 2353-2359.